extension IMImagePath on String {
  String get _imPath {
    return 'assets/images/im/';
  }

  String get imImgPath {
    return '$_imPath$this';
  }

  String get imImgPathCell {
    return '${_imPath}chatCell/$this';
  }

  String get imImgPathExpression {
    return '${_imPath}expression/$this';
  }
}
